Conveyer.



PATENTED DBO. 18, 1908.

U. D. SEEBERGEB.

00N VBYER. unicum! umm lun. non,

l llllI'I-Illlf L "num-,uwlnlle lo. 888,654. PATENTED DEG. I8, 1906. C. l)y SEBBEEGER.

OONVEYBH.

APPLICA'I'IUI FILED HAY. H02.

nl lOl-p 'fr'. n. ll-livu.. l c

UNITED STATES PATENT OFFICE.

CHARLES l). SEEBERGER, OF YONKERS, NEW YORK.

CONVEYER.

No. 888,864. Specification of Latter. Patent. Patented Doc. 1B, 1906- Appllnltlon lied la! 28,1902. Borla] No. 109.287.

To all whom, it may concern: y on which they form steps, in orde!` to keep Be it known that I, CHARLES D. SEEnnntheir trcad-surfaccs horizontal, while the GER a citizen of thc United States, residing i are on the sume horizontal plane on the landY at onkers, in the county of Westchester and,I ings and preferably on the same horizontal 6o 5 State of New York, have invented certain plane on the curves constitutin the ends and new and useful Improvements in Coiweyers, the unused portions ofthe trac f course of which the following is a specification. j it will be understood that l may emplo an y invention is concerned with certain arrangement of tracks and trucks in w ich no 'el ilnprovmnents in conveyors, and ari the front and rear wheels are normally on dif- 65 io ticulanly with lnoying stairways in w lich ferent levels and in which the inner and outer the tread-sunaces of the steps forni a contintracks are in the saine horizontal plane on nous level surface on the landings and a scthe inclined portions and in different planes ries of steps on the inclined portions of the i on the other portions, being the reverse contracks upon which they nin, and is designed struction from that illustrated, and that I 7o to produce a device ofthe class described in may employ but a single pair of wheels for whlclrthc steps c ftn trtinsportf/either on the each step. ascending or descending portion with but s i The wheels l() and l2 are shown as mountsingle riser for cach step instead of the two ed on the arms 14, which are preferably rigrisers which have heretofore been necessary it ly secured to the brackets l5, constituting 75 :o when a ingle set of steps were arranged tu, the ends (f the stes. These brackets l5 are transiport on both the ascending and desurmounted by t le rectangular frame 16, seen inginclines. In order to cllect this (leinto which is set thc plate 17, constituting aired result with a sin le riser, and thus obthe main portion of the tread-surface of the viate sonic of the disa vantages arising from ste Upon the stub-shafts 18, connecting 8c z5 the use of two risers on cach step, l employ a an between the arms 14 and the brackets l5, single riser `on each step, preferably pivotcd l mount the links 19, which preferably have theretoV and arran ed so that itis automaticthe rack-teeth 2t) formed on the under surally moved from le front to the rear side, or r'face thereof, so that the links are, in effect, edge of the step as it passes over a la ndin r or rack-bars, to which one or more spur-gears 2l 35 v3o portion of the track connecting ascen in are applied on both sides of the steps at any and descending portions of the track, an necessary points to drive the same. As the viceversa.Y various spur-gears 21 are rotated in unison, To illustrate my invention, I annex hereto it will be apparent that the steps will be two sheets of drawings, in which the same driven forward at a certain fixed rate of 9o reference characters are used to designate speed.

identical parts in both sheets, of which- Mounted to slide and rotate in suitable Figure l is a side elevation, in a somewhat bearings 22 and 23, the position of which is diagrammatic form and with portions broken indicated in dotted lines in Fig. 3 and which away, of c conveyer containing my improve are formed in the brackets is the rock- 95 `4crmenta. Fi 2 is an inverted plan view, onshaft 24, which has rigidly secured thereto i scale, of a step, together with a the pair of brackets 25, upon the outer ends part of t e associated housing, showin an of which is secured the reversible riser 26, embodiment of my present invention. which preferably has its surface curved for 3 is a topiplan view of the same parte, tothe customary reason. This riser while roo gather with a drive mechanism, on a larger traveling upon the ascending inclined por- Qcohs. 4 is a rear elevation of the parts tion 27 of the tracks occu ies the tion shown in .3, with the tracks added; and shown at the left side of ig. l an in full 5 is a vertical section on the line 5 of lines in F' 5, and asit passes some point in v Fit?, Inl-t on :still e.I A'the u perlllanding, as at 28 it is automaticlos 5o out my' invention I preferabl alli' snftcd to the posit-ion shown at the ri ht c o t our-wheeled t of t1 ook, suc si e o Fig. l and in dotted lines in F' 5 y as r ovm, and which t e forward wheels the mechanism hereinafter dcscrib, the

roll upon the inner pair of tracks ll, while ste being assumed to run from left to right the naar wheels l2 roll upon the outer tracks in i l and 6, although ofcourse they my l l0 )3, these tracks in different horixontal trav Illain either direction. On the deseen plane. on the inclined portions of the ways ing inclined portion 29 of the tracks and the lower en d of tlieltracks the riser bodied in the form which l at resent 66noceupies its dotted-line position', but at sonic sder best adapted to carrv out itspur osos,

convenient position before the ascending u il it will he uni ersiood tlnit it is en a e 0 riser for each ste upon mechanism for securing said riser inclined portions. 1 hive my invention ns ein-l i bring the riser intocoperntve reletion with? eline 27 is reach as at 30, it is shifted again modifications and that l do not des re 'tube to the full-line sition, which it occupies unlimited in the interpretiition of the following 'IQ til it reaches t 0 uint Z8 again, Where it is cluiins, except its muv be necessitated by the, in reversed. he mechanism for cuto- L suite of tho prior rif inatioally ell'ect'in t'.s reversal is best shown What l oluim s new, and desire to secure j in Figs. 3 to 5, w tere it will be seen thut on by Letters Patent oi' the United Statemis-f the under surface of s convenient portion 31 1 t. ln u device ot thc class described, o, 'Step 15 of the housin in which the system is inclosed hu'cing n single reversible riser adopted toeii- V I locate o su 'cient number of rock-teeth 32 operate with either side thereof for the purto engage with thc spur-geur 33, secured i pose described. pon the outer end o the sliut 24. rlhe 2. ln ii device ofthe chissdescrhed, instep number 0f the teeth 32 t web Shifting-point l huving u reversible riser lor the purpose ile-,8o L28 and 30 is just sullicient to rock the. shiilt l scribed, und menus for locking sind riser in 24 through the necessary angular distance. to either position. the riser 26 from mie position t0 llil l 1i. ln n device of the clams iloiqoribgihwnjrs other. l hii'vingir aiseendinpr und descend-ing incliner 'TUiOOk the l'iSll ill either Nlsitivh which it portions. n step ndnpted to iiio've "in Suid Wnf', 3.5"?, ,muy assunte, 1 place upon t ie shaft .24 u pin und hiivin r ii reversible risen 34, which is adapted to cooperate with the 4. ln n device of the ehissdescribed): slot 3 5 or 36, as the case muy be, formed in huving usi-ending und descending inclined one face of the b'rricket 37,seeored on the nnportions, lsteps ndnpted to iiio've `'in-.infiniti i der side of thA Jtrend yortion I7 of the step 'g vrujrs, ineens for driving said stops', revejrsis. 9 6 and in whiclil'tlie sha t .24Xis journuled. A hle risers secured to sind steps, 4and nier'ins helicnlly-coilcd expciiding-spring` 33,seenred l lor iintoniutieiilb1 reversing sind risers as the at one en of the shaft 24, is interposed bel steps poss from nn osi-ending inclined pory tweenthe bearing22 andthe ndjacentlimqket tion to n descending inclined portion o the Y 25 in such s position thatfit holds the shalt tim-l und vice versn. t 95 24V normally in the position shown in n n n decice of the cliissdeseribeihways lines in Fi 4 and tends to return it to said huving usci-riding and descending inclined osition W en it is displaced. To lnove this i portions, steps adapted to move in ssid'weys, shaft 24 automatico Y to the dotted-line pomenos for driving said steps, reversible risers sition of Filg. 4 at eac i of the shifting-points on snid steps, ineens for automatically revers too 2,8 and 30, employ o emwsurfnee ithformed l ing seid risers :is thc steps pass rorn an-ns- 'onthe housin 3l in osition to cooperate cending inclined portion to n dcscendingjn Withthe end o the sha t 24, and cani it' to its` clined port ion of the tracks and vice 'versnI `dotted-line position, where the geur 33 is enand locking mechanisms for securing' sind by the teethV 32 und the riser is rocked risers in either position and retaining?, t -ei'rif e5 'f tothe other position, in which it 'is locked until they are ready to he reversed. 't f, 1 iY mediately the rack-teeth 32 are passed by o. ln a device of the class described, "rt'jgs'ys` f "te action ofthe spring 38 in throwing 1t having ascending and descending` inc neil Bock longitudine) y to normal osition, portions, a step adapted to` moveiiif'soiil (shown in full lines in Fig. 4,) 'in wiiicli the ways, arms ivot-ally secured on 'the' under iik `|iix'i34 willufl e the other one of the slots 35 side of a step, the riser secured to said urine, jor 36 tohoi t e parte locked To prevent and ineens for holdiniv` said riser in either pos 'the ahnft ret to its normal position unsition of adjustment. i dei' thestrees of the spring 38 before the shift- 7. ln s device of the class described,wnys ing of the riser is completed, 1 form adjacent having ascending an descending inclined is tothe rock-teeth 32 an enga 'ng siii/'faceAO portions, a step adapted to move in"` sin in dotted .lines in ig. 3) parallel ways, a rock-shaft secured to said Step, M .which mi" be considered as u secured. to the rock-shaft u to of theeam-surface 39. the arms, `ineiins for melting said shaft, to 1MB the ni herein shown and d`elbriniz the riser into coo rstive relation with( e.:

it willliespperent that I um enabled the front or rear oft e step, and oc or deseen p' portions of t e run, position of adjust-ment. ll Spplireht t t its many of these' 8. 1n s device of the class described, Nrlir` muy be employed as may having ascending and descending:` inclin-` y nseeesl to insert rtioiis, a step s spied to .have inrssid controlling meclinnism at some ways, s rock-shaft secured to sind step; arms y cc .between each wending securedtnthe rocksliaft,the risersec to I H the arms, means for rock' said siisttto the flieht 0i. rem' of the step, and locking l formm'ingthe shaft to bring the pin into and 56 meehaiism for securing said riser in either l out of engagement with the sluts consisting-F positiouo adjustment ronseting of n beerof n cum eo'ipernting with the endj'of th` y; mg hn'ving ots therein. a pin 34 on the rockshnftto move the pin out of engagement mn f s gshnft Edapted to coperute with Suid slots, n spring copcratingwith sind shaft t0 mve und meane'for moving the shuft to bring the it to bring thcpin into engagement.` 5'5 l pin into und out of engagement with Huid 13. ln n devzrc ofthe classdeseribedmrnys, `sl0t s"; l steps adapted to nlovc in snid ways, brackets 9. In a device of the clues described, ways i forming u purl of Suid steps, studs rejecting ra having ascending and descending inclined 'outwnrdlv from said brackets, w wels supe.

portions, a fstep adapted lo nuwe in said orted from the outer ends oi said studs, nnflf .waysi, arockoshoft mounted on Suid step und l inks pivoled on .Quid studs und conneeiinii.` having u pinion secured thereto., arms sethe steps, -enred to seid Ishaft, u riser Secured to seid l I4. 1n n device ofthe class described.weven;

l5.alfms, locking mechanism for holding seid steps nda )lcd to move in sind ways having. i Vriliel' in either position of iuljustnient, und brui-keb: iorlning n part thereof, studs pro? 65 "LL-'racks adapted to coperatemith the pinion i jectingoutwnrdly from seid brackets, wheels t0 rock sagdfshft. i lQupportcd from the outer ends of s'uid studs, lll a device of the class described, wuvs rnck-links pivoted lo snid studs nndconnect#- agahgiving ascendit. f and descending inclined l ing the steps on both sides, and lriving-#fn-` pnrtionmustep a( apted t'o lnove in said ways ion` :'Qzpcruting with Snid links on'both sides 7c' fenrrying, rock-shaft having u pinion seoftbesteps. l "enied on one end th/reof, und urnis secured 1.3. ln u deviee ol' the class described, ivnys i. mgfu riser serured to their having usf-ending und descending inclined ,g5 ngs secured to Suid ste-ps l. 1ortions,steps adapted to move in said xveysl lg, v g slotsthereon, ul in non the shuft f saving brackets foriniiuV n part therefor,"75I adapted` tomipemte Witt snulslots, menus l .studs irojerting outward y from said breek#` Qi' mving thesha'l't longitudinally to bring fiets. wlliecls sup )orteil from the outer end-Snif Yte li pin intofand ont ofengngguuent with the` fsuid IStuds. rmI '-links pivoted to said'stnlS- Y te, nndracksfor engaging the pinion for and i-onnecting the steps on both sides, and j' I; [geput-pose described. driving-pinione` co icmting with Suid links 85 ,l'll` Infa device of the clnssdeseribcd. ways ou both sides of the steps, und 'reversible? hnyi'ng iwi-.ending and descending inclined riseis pivolcd to the under sides p'f-eavclrof fptirtl'iiim, Steps adapted to niovc in said suidstcps and swinging freely betvi'jeen sidl Wly, -{tiek- SltMLS Secured in said steps hnvstuds for the purpose of rcversin v the sante.; rnS seenled thereto, `risen; secured to i it'. In a device of the` class i escribedfg 85" arms'jneans for rockingsaid shafts to step having e reverbible riser, and means for" tGthejpositiriOf therisers, locking meehantomuticall reversn the riser. or said risers., and means for diseni7. In n Levice of the class described;l

gthevleeking mechanisms. step having a reversible riser, n rhielt: afer hgi i 7 In a evice of theelnss described, ways i ing the riser in either position and'men'tie for ,29g ,A and descending inclined automaticallv unlocking an frevereingihe@ 8rd niptedto move in said l lid f riser vand Vlocking it in reversed posit/in. 2;

0c ghnft mounted on said i i In testimony whereof I zrflix my'sgnntnr tsaid 'rock-Shaft and l in presence of two witnesses. ffl.

' f CHARLES D SEEBERGERM i rnchl'nism for Suid rock- Witnesses: eotisitingf n bearing having slots THOMAS M. LOGAN, i 1 pin on the shaft, and means W. H. BRADY. 

